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Finding the Fourth Proportional to 86,696.70, 130,047.73 and 23,516.57

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Solution

The fourth proportional to 86,696.70, 130,047.73 and 23,516.57 is: 35,275.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,696.70 : 130,047.73 = 23,516.57 : x
  2. Step 2: Convert to fraction form
    86,696.70/130,047.73 = 23,516.57/x
  3. Step 3: Cross multiply
    86,696.70x = 130,047.73 × 23,516.57
  4. Step 4: Simplify right side
    86,696.70x = 3,058,276,869.59
  5. Step 5: Solve for x
    x = 3,058,276,869.59/86,696.70
  6. Step 6: Final answer
    x = 35,275.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.